Schmarblefarby. You can use a 55 thru 67 beam in your bus. The difference is the spindles and brake/drum configurations through the years. 63 down had smaller king and link pins except for the oddball 63 heavy duty setup. You could still maintain your same brakes with a 64 thru 67 beam. Sent via BlackBerry from T-Mobile -----Original Message----- From: "Denis" <coocoo@xxxxxxx> Date: Mon, 19 Mar 2007 15:14:45 To:<tcb@xxxxxxxxxxxxx> Subject: [tcb] Decision on the beam I have talked to more experts and have decided that I will only replace the torsion springs. The 67 beam is different and not easily swapped, apparently. I found out, for everyone's knowledge base, that the torsion springs up to '79 are all the same, so Derrick at Wayout is standing by with my replacement springs, after I tear into, expose, and examine mine. Stand by for NEWS!